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diff --git a/board/work-microwave/work_92105/README b/board/work-microwave/work_92105/README new file mode 100644 index 0000000000..3c256e0b2c --- /dev/null +++ b/board/work-microwave/work_92105/README @@ -0,0 +1,91 @@ +Work_92105 from Work Microwave is an LPC3250- based board with the +following features: + + - 64MB SDR DRAM + - 1 GB SLC NAND, managed through MLC controller. + - Ethernet + - Ethernet + PHY SMSC8710 + - I2C: + - EEPROM (24M01-compatible) + - RTC (DS1374-compatible) + - Temperature sensor (DS620) + - DACs (2 x MAX518) + - SPI (through SSP interface) + - Port expander MAX6957 + - LCD display (HD44780-compatible), controlled + through the port expander and DACs + +Standard SPL and U-Boot binaries +-------------------------------- + +The default 'make' (or the 'make all') command will produce the +following files: + +1. spl/u-boot-spl.bin SPL, intended to run from SRAM at address 0. + This file can be loaded in SRAM through a JTAG + debugger or through the LPC32XX Service Boot + mechanism. + +2. u-boot.bin The raw U-Boot image, which can be loaded in + DDR through a JTAG debugger (for instance by + breaking SPL after DDR init), or by a running + U-Boot through e.g. 'loady' or 'tftp' and then + executed with 'go'. + +3. u-boot.img A U-Boot image with a mkimage header prepended. + SPL assumes (even when loaded through JTAG or + Service Boot) that such an image will be found + at offset 0x00040000 in NAND. + +NAND cold-boot binaries +----------------------- + +The board can boot entirely from power-on with only SPL and U-Boot in +NAND. The LPC32XX-specific 'make lpc32xx-full.bin' command will produce +(in addition to spl/u-boot-spl.bin and u-boot.img if they were not made +already) the following files: + +4. lpc32xx-spl.img spl/u-boot-spl.bin, with a LPC32XX boot header + prepended. This header is required for the ROM + code to load SPL into SRAM and branch into it. + The content of this file is expected to reside + in NAND at addresses 0x00000000 and 0x00020000 + (two copies). + +5. lpc32xx-boot-0.bin lpc32xx-spl.img, padded with 0xFF bytes to a + size of 0x20000 bytes. This file covers exactly + the reserved area for the first bootloader copy + in NAND. + +6. lpc32xx-boot-1.bin Same as lpc32xx-boot-0.bin. This is intended to + be used as the second bootloader copy. + +7. lpc32xx-full.bin lpc32xx-boot-0.bin, lpc32xx-boot-1.bin and + u-boot.img concatenated. This file represents + the content of whole bootloader as present in + NAND at offset 00x00000000. + +Flashing instructions +--------------------- + +The following assumes a working U-Boot on the target, with the ability +to load files into DDR. + +To update the whole bootloader: + + nand erase 0x00000000 0x80000 + (load lpc32xx-full.bin at location $loadaddr) + nand write $loadaddr 0x00000000 $filesize + +To update SPL only (note the double nand write) : + + nand erase 0x00000000 0x40000 + (load lpc32xx-spl.img or lpc32xx-boot-N.bin at location $loadaddr) + nand write $loadaddr 0x00000000 $filesize + nand write $loadaddr 0x00020000 $filesize + +To update U-Boot only: + + nand erase 0x00040000 0x40000 + (load u-boot.img at location $loadaddr) + nand write $loadaddr 0x00040000 $filesize |